Bowl for centrifugal cream-separators.



PATENTBD MAR. 20, 1906.

W. C. HARTMANN.

BOWL FOR GBNTRIFUGAL CREAM SBPARATORS.

APPLIOATIGH FILE!) BEPLTI. 1904.

2 SHEETS-SHEET 1v [me n15? a 6d A C/MA (Y Mum] PATENTED MAR 20, 1906.

W. U. HARTMANN. BOWL FOR GBNTRIPUGAL CREAM SEPARATORS.

APPLIGATIGN FILED EBPT. 27.1904.

2 SHEETS-1121]? 2.

Maw 6?. K/malml glfim WH/HeM-w g ML, wfi

CD/M G/wwc osirnn STATES A E T OFFICE.

WILLIAM (1. HARTMANN, OF LANSING, MIUHIGAI Q, ASSIGNOR 'IO OMEGA SEPARA'IOR COMPANY, OF LANSING, MICHIGAN.

BOWL FOR CENTRIFUGAL CREAM-SEPARATORS.

Specification of Letters Patent.

ratented March 20, 1906.

Application filed September 27 1904. Serial No. 226,240.

To alt whom, it may concern:

Be it known that I, WILLIAM. C. HART- MANN, a citizen of the United States, residin at Lansing, county of Ingham, and State 0' Michigan, (whose post-oilice address is Lansin Michi an,) have invented certain now an useful improvements in Bowls for Centrifugal Cream-Separators, of which the following is a specification.

My invention relates to separator-bowls of the kind covered by Letters Patent No. 621,306, dated March 14, 1899, to C. L. Kneeland and William C. Hartmann, the said William C. Hartmann being myself, and is an improvement on the device covered by said Letters Patent.

The object of my present improvement is to make a construction that will be more cilicient in operation and at the same time more economical in cost of manufacture and more readily adjusted for use.

In the drawings, Figure l is a vertical section of the bottom of a separator-bowl with my device in position. Fig. 2 is a View of half of Fig. I from above, a portion of the diaphragm H and false bottom E being broken away to show the cream-tube L. Fig. 3 is a lan view of the false bottom E, taken from slow to show its modified construction. Fi 4 is a vertical section of the false bottom E, showing the construction more in detail. Figs. 5, 6, 7, and 8 are detaiied views of different parts of the device.

In order to more clearly bring out the modifications made in my present device from the construction employed in the patent above referred to, I have used in the draw ings for this application the same letters that were emplo ed in the drawings for the other device for the corresponding arts.

The general construction 0 the device being fully set forth in the prior patent, it will be sufficient here to explain the modifications of the said construction made in the device covered by the present a plication.

The diaphragm H an the false bottom E are practically identical in my present device with those employed in the preceding inven tion; but the screw K and the tubes F and G are dispensed with. An opening is made in the center of the falsebottom E, to which is fitted a cream-tube L, which extends downward into a cavity M, formed to receive it in the bottom B of the bowl. A pin N is firmly secured in the side of the cavity M, preferably near its lower end, which is adapted to engage in a slot 0 in the cream-tube L for the purpose of holding the faise hsttom E securely in osition. An opening P is bored verticaliy in the bottom B of the bowl, near to the cavity M, and a tubular milk-screw Q passes through the side of the bowl-bottom and into the openin P. The purpose of this tubular screw will be more fully explained hereinafter. One or more openings R are drilled through the bottom B of the bowl, preferably in a diagonal direction, so as to open into the cavity M and the cream-tube L to permit the escape of cream from the cream-tube L.

The above is the construction at present preferred by me and is shown in detail in igs. 6 and 7. However, it is not essential that the opening P should be separated from the cavity M, smce the re uired separation between the cream and will be e ually well made by the wall of the cream-to. e L. So if desired, without dep artingfrom the spirit of my invention, the opcnin may be made as one or more grooves, pre erably two, situated opposite each other in the sides of the cavity M, as shown in Fig. 8. In this case the tubular regulating-screw Q is inserted in the diagonal openings R instead of in the opening P.

The operation of my device proceeds the some as in the Letters Patent already referred to until the separation between the cream and milk is fully completed, the cream accumulating in the center of the dia hragm 'H and filling the cream-tube L and t e milk filling the space J and the open space beneath the false bottom E in the same manner as in the preceding patent. The cream passes down the cream-tube L and escapes through the opening R. The amount of milk remainin in the cream is re ulated by screwing the tubular screw Q farther out or in, so as to permit more or less milk to esca c with the cream, in a manner perfectly wel known in the art, the operation being identically the same in the two forms shown in Figs. 7 and 8.

I claim as my invention and desire to secure by Letters Patent.

1. In combination, a rotatable so aratorbowl, a bottom removably attache to said bowl, and having on its lower surface a projection containing a central cavity and two Outlets, one communicating with the upper surface of said bottom near the center, the other, with said central cavity, a false bottom extending completely across beneath the chamber in the body of the bowl and provided with a conical diaphragm attached to its upper surface, with a tube passing through said false bottom and fitting the central cavity formed in the bottom of the bowl, substantially as described.

2. In combination, a rotatable separatorbowl, a bottom removably attached to said bowl, and having on its lower surface a projection containing a central cavity and two outlets, one communicating with the upper surface of said bottom near the center, the

other with said central cavity, a false bottom vided with a conical diaphragm attached to its upper surface, and a tube passing through j said false bottom and fitting the central cav- 1 ity formed in the bottom of the bowl, with a regulating-screw fitted into one of said outlets, substantially as described.

3. In combination, a rotatable se aratorbowl, a bottom removably attached to said bowl, and having on its lower surface a projection containing a central cavity and two outlets, one communicating with the upper surface of said bottom near the center, the other with said central cavity, a false bottom extending completely across beneath the chamber in the body of the bowl and rovided with a conical diaphragm attache to its upper surface, a tube passing through said false bottom and fitting the central cavity formed in the bottom of the bowl, and means for securing said false bottom in position in the bowl, with a regulating-screw fitted into one of said outlets, substantiallyas described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM C. HARTMANN.

\Vit nesses:

H. L. LAWRENCE, C. C. 001). 

